Malicious PDF — malware analysis report

Static analysis result for SHA-256 565202ecacac4d47…

MALICIOUS

PDF

41.8 KB Created: 2020-08-16 14:26:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67c37d4ef44dd8f87b2b0465edc8da24 SHA-1: fe23cd71dfe0deaa7fd970fcded77e27d4d7cea7 SHA-256: 565202ecacac4d470536f70fb5e4aad02e62d624eef181c0d7732cfea204fbaf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, which points to ttraff.com. The document body, though heavily obfuscated, contains the same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to shopify.com domains hosting other PDFs. The primary malicious link is likely intended to redirect the user to a phishing or malware distribution site.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=baby+driver+movie+parents+guide
    • http://files.neefbuckmusic.com/uploads/1/3/0/7/130775320/valazefodaboxak.pdf
    • https://cdn.shopify.com/s/files/1/0440/8374/0822/files/cambodian_news_information_center.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/liwaragenarowaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/8115296008.pdf
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/23743643976.pdf
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/bivosijusebozunod.pdf
    • https://cdn.shopify.com/s/files/1/0435/3087/9125/files/sanitary_waste_disposal_methods.pdf
    • https://cdn.shopify.com/s/files/1/0428/1751/9772/files/92070540030.pdf
    • https://cdn.shopify.com/s/files/1/0433/5593/0783/files/administrao_estratgica_samuel_certo.pdf
    • https://cdn.shopify.com/s/files/1/0449/4888/1567/files/ugly_duckling_picture_story.pdf
    • https://cdn.shopify.com/s/files/1/0435/6207/4261/files/87418004710.pdf
    • https://cdn.shopify.com/s/files/1/0429/4977/1427/files/maruvexirifux.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000632e.bin
2f0d5b3fa20603507e1efe07fe05a3e015a3fa4a118eaab5353cf8e5ef606251		 pdf-font-stream PDF embedded font (sfnt) at offset 0x632E 5600 bytes
font_01_sfnt_off00007631.bin
042d94c5fafd4f83221101e5e2713bbd91193f5a53c2a918e46a8860a5c5bd8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7631 10992 bytes

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